Mold.



LEWIS A. BROWN, OF IIORINE, MISSOURI.

MOLD.

Specification of Letters Patent.

Patented July 20, 1909.

Application led `1.\Tovember 20, `1908. Serial No; 463,619.

To all whom it may concern:

Be it known that I, LEWIS A. BROWN, a citizen of the United States, residing at Horine, Jefferson county, Missouri, have invented a new anduseful Mold, of which the following is a specification.

This invention relates to molds for making bricks, blocks, etc.; and it consists of a base portion or pallet and a number of angular plates which may be adjusted n the base or pallet to form one or more open box structures or molds in which the plastic material may be molded and given the proper shape. Means is provided for holding the angular plates in dierent positions whereby to form bricks or blocks of different sizes; binding devices are employed to hold rigidly the angular plates in whatever adjustment they may be placed, whether the mold is formed or made up for a large size brick or block or a number1 of smaller bricks or blocks.

Other improved features are embodied in the device all of which will appear from the following description, reference being made to the accompanying` drawing in which- Figure l is a plan view of the mold assembled to form a number of smaller bricks or blocks. F ig. 2 is a side elevation thereof. Fig. 3 is an end view, partially in section. Fig. t is a side elevation of the mold ar ranged to form a large block. Fig. 5 is a detail sectional view.

The base or pallet l is of suoli size and weight that it is readily portable, in width say eight inches, and in length about thirty inches, more or less. A bracket 2 is fastened on said base or pallet near each end. Each of said brackets has a screw-bolt 3 operating therein, said bolts being provided with heads et for manual engagement whereby they may be readily operated. A compression plate 5 is attached to the inner end of each bolt, the connection between said members being loose so that the bolts may turn with respect to the plates. To each side of the base or pallet 1 a number of screws or bolts 6 are secured. Two plates 7, one for each side, are provided, each having a series of holes 8 of sufficient size to receive the heads of the screws or bolts t3, and having narrower slots 9 opening into said holes of su cient size to receive the body of the bolts or screws, but

V not the head. This arrangement, therefore,

constitutes means for detachably fastening the plates 7 against the sides of the base or pallet l in the manner shown. edges of the plates 7 have a series of projections l0 projecting vertically above the uppersurface ofthe base or pallet for the piirpose of holding the mold sections thereon.

When it is desired to make bricks or small blocks a series of small mold compartments are erected on the base or pallet. A series of angular plates ll are set edgewise upon the base or pallet, or upon a smooth galvanized plate l2 on the ltop of said base or pallet, in t-he manner shown in Figs. l and 2, the ends of the long arms of said plates extending transversely and bearing against the ends of the short arms of adjoining plates, thereby forming a series of chambers whose greater length is transversely of the base or pallet. The projections l0 hold the plates from slipping outwardly from their proper adjustment and serve to hold said plates in perfect alinement. After being assembled in this way the screws 3 are operated to press the end plates 5 against the plates at the end and thereby to bind the parts securely in position. Then the compartments are filled with the plastic material which is thereby given proper shape and appearance, after which the plates 7 may be removed in an obs vious manner, and the bricks or blocks `may be taken off. If it is desired to make the bricks or blocks of less length than the full length shown in Fig. 1, which is the width of the base or pallet, this may be done by placing blocks or other suitable objects 13 at the sides between the projections l0 and the angular plates, thereby reducing the length of the compartments formed by said plates (see Eig. 5).

In case it is desired to forni a single large block a mold therefor may be provided by means of angular plates la (Figs. 3 and 4) mounted upon the base or pallet l with their longer portions extending along opposite sides of said base or pallet, and the shorter arms thereof extending transversely and having as abutments the ends of the opposite longer portions, thereby forming an elongated rectangular chamber or mold. The bottom of this mold is a galvanized plate12 which rests upon the top of the base or pallet. The angular plates are held at the sides by the projections of the plates 7, and the ends by the plates 5 whereby the mold may be held together when being The upper moved from place to place. It is obvious that blocks 13 may also be used in this construction to reduce the Width of the mold.

I am aware that there may be Variations from the construction described and shown Without in the least departing from the spirit and scope of the invention, and do not restrict myself to exact features.

What l claim and desire to secure by Letters Patent is- A mold comprising a base or pallet, a plate resting on said base or pallet, a series of angular plates arranged to form compartments on said irst-named plate, plates re- 15 movably fastened to the sides of said base or pallet, projections on said last-named plates holding said angular plates against lateral movement, a support at each end of said base or pallet, a screw-bolt operating in each of said supports, and a plate attached to the inner end of each of said screw-bolts and arranged to bind against said angular plates, substantially as specied.

In testimony whereof I hereunto athx my signature this 10th day of October, 1908.

LEVIS A. BROVN.

"Witnesses:

L. C. KINGSLAND, JOHN D. RIPPEY. 

